DocScrutinizer05 changed the topic of #qi-hardware to: Copyleft hardware - http://qi-hardware.com | hardware hackers join here to discuss Ben NanoNote, atben / atusb 802.15.4 wireless, and other community driven hw projects | public logging at http://en.qi-hardware.com/irclogs and http://irclog.whitequark.org/qi-hardware
<DocScrutinizer05> but soab and hydrocarbon tends to act funny
<DocScrutinizer05> soap*
<whitequark> esbit... is it the same thing called "solid alcohol" here?
<DocScrutinizer05> prolly
<whitequark> I don't quite remember what is it composed of, but surely not alcohol or soap
<whitequark> I know you can make hexagen out of it
<whitequark> right
<whitequark> a guy I know once cooked RDX out of hexamine right at his kitchen. It burned up pretty impressively
<whitequark> right! "Dry alcohol" is literally how it's called in RU
<whitequark> imported term from East Germany?
<DocScrutinizer05> anyway Esbit is prolly a red herring here, rather search for soap and terpentine for example
<whitequark> one of first links in Google by that query: "Topic: Turpentine - Page 1, Enemas specially for sexual pleasure..."
<whitequark> O_O
<DocScrutinizer05> soap molecule has a water end and a err fat end
<DocScrutinizer05> the hydrocarbon reacts with the fat end
<whitequark> DocScrutinizer05: polar and nonpolar end is how it's called in English afaik
<DocScrutinizer05> dunno about ethanol
<whitequark> and yeah, I know how surfactants work :p
<whitequark> ethanol is highly polar
<DocScrutinizer05> yeah, missyed the word
<DocScrutinizer05> alcohol is not exactly non-polar, is it?
<whitequark> it's a really tiny molecule, so there's no place to have a nonpolar end
<whitequark> basically, to my understanding, soap+alcohol ~ soap+water
<whitequark> the *physics* of mixing will be different for sure, the chemistry prolly not
<DocScrutinizer05> well, then maybe try all three together ;-)
<DocScrutinizer05> mybe you invent something completely new
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<whitequark> apparently soap and alcohol are explicitly mixed to make transparent soap
<DocScrutinizer05> yeah, sounds like one of the weird unexpected effects I referred to
<whitequark> though it's also has glycerin and is heated there, which prolly leads to some reaction, unsure which
<whitequark> without heating nothing would happen I think
<whitequark> there's also sugar...
<DocScrutinizer05> oh yeah, sugar, the unknown alcohol
<DocScrutinizer05> (sorry, never been too bright in chemistry)
<whitequark> DocScrutinizer05: remember that weird gif? that weird pattern is actually a fractal
<whitequark> you could zoom in into it forever
<DocScrutinizer05> actually sweetening your cooling water might also have some interesting effect on the quality of the cut
<whitequark> yes, and it would also make everything sticky, and attract tons of flies
<DocScrutinizer05> hehehe, definitely
<whitequark> the evening of abridged advice at #qi-hw
<DocScrutinizer05> though pure sugar is odorless and thus doesn't attract flies
<whitequark> hm
<whitequark> okay, wasps
<whitequark> they seem to communicate the presence of sugar or something
<whitequark> although I haven't seen any in moscow for a long time
<DocScrutinizer05> yes, definitely. Like bees. But they also need to "find" the sugar or smell something "sweet"
<DocScrutinizer05> and wasps are even more interested in meat than in sugar
<DocScrutinizer05> proteine
<DocScrutinizer05> ok, they love cake as well
<DocScrutinizer05> definitely I never seen them eating pure sugar, even when available
<DocScrutinizer05> fruits yes
<whitequark> I have, they love watermelons to the point of drowning in them in thousands
<whitequark> and it's basically pure sugar
<whitequark> <pedantic>watermelons aren't fruits, they're berries</pedantic>
<DocScrutinizer05> it's not, it has lots of aroma and water
<whitequark> oh, you mean like sugar blocks. definitely.
<DocScrutinizer05> I guess wasps have no "saliva" to even notice that white crystal is sugar
<DocScrutinizer05> for them it's prolly looking and smeling just like sand
<whitequark> looking? well... most insects don't rely on sight anyway
<DocScrutinizer05> surprisingly few animals seem to be interested in sugar
<whitequark> and those who do have such a wide range they could probably work like tiny spectrometer analysis stations
<DocScrutinizer05> pure sugar
<whitequark> pure sugar doesn't appear in nature, does it?
<DocScrutinizer05> exactly
<DocScrutinizer05> it's synthetic
<whitequark> so then there's no evolutionary pressure
<DocScrutinizer05> yep
<DocScrutinizer05> once I worked in a caffe. A mouse - during the night - pierced a roundabout 100 of those 10g coffemilk plastic cups with alu lid. The mouse didn't touch the sugar bags nearby
<DocScrutinizer05> but it ate 4 snickers. Not completely of course
<whitequark> that would be one huge mouse
<DocScrutinizer05> hehe, indeed
<whitequark> not even a big rat would probably manage that
<DocScrutinizer05> it must have been too fat to walk even after the volume it ate out of those 4. I guess the mouse must have weighed double after meal
* whitequark recalls dissection of some animals, including rats, in uni
<whitequark> really, the most remarkable thing about the rat is the size of its balls. they're truly enormous. slightly bigger, and they'd be bigger than mine, and I don't mean scaled up wrt/ body size
<DocScrutinizer05> LOL
<whitequark> one of the things I best remember from the uni
<whitequark> I've asked the professor. apparently, the male rat lives to screw, and for that it needs quite a factory of gametes
* DocScrutinizer05 idly glares at a Huawai(?) Q101 3G USB stick
<whitequark> Huawei?
<DocScrutinizer05> or that, or not
<DocScrutinizer05> from TPE
<DocScrutinizer05> got it together with a eeePC I bought there
<DocScrutinizer05> was an offer on top of the SIM contract I got me. 100EUR or somesuch, for both
<DocScrutinizer05> it's the size of a lipstick, a huge one
<whitequark> yeah they usually are
<DocScrutinizer05> (snickers) I heard several times now that bait for mousetrap best is peanutbutter
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<DocScrutinizer05> whitequark: new c't-Hacks has some nice tesla transformers :-)
<DocScrutinizer05> one with transformer, capacitors and spark gap. One with electron valve \o/. And I think one with mosfets?
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<wpwrak> (vodka as coolant, plus bubbles) can't wait for the selfies ;-)
<wpwrak> (adding sugar) the alcohol will kill the flies ...
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<roh> wpwrak: the reason we do not use alcohol is smoking needs to be forbidden in the vicinity of the machine then...
* wpwrak wonders whether Josephine Cochrane, inventor of the dishwasher, ever got a prize for extraordinary achievements for humanity
<roh> also.. if it would be vodka we would have problems due to people drinking the machines stash
<wpwrak> in russia, neither should be much of an issue :)
<DocScrutinizer05> I still wonder how a freshly booted system (a few days old) could eat 8GB of RAM, and how processes may have 2, 3 or even 4GB of virtual size :-S http://wstaw.org/m/2014/05/26/plasma-desktopSQ1787.png
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<wpwrak> efficient programming :)
<whitequark> DocScrutinizer05: (virtual size) it's very simple, and in fact it actually *is* efficient programming
<whitequark> VSZ grows if a process requests the OS to mmap large files
<whitequark> on 64bit mmapping large files is the best way to randomly access them, because you get the OS manage the memory for you--for example, it will read the data directly into the allocated pages without any copying, and evict the pages in low (physical) memory conditions, again without the app having to do anything
<whitequark> Sublime Text mmaps hundreds of GB, even
<whitequark> the page tables and kernel structures consume some amount of physical memory, but it's comparatively miniscule
<whitequark> DocScrutinizer05: otoh I really don't know what's wrong with kdeinit on your system. On mine it consumes 21M of RSS
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<nicksydney> what's up people ?!
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<DocScrutinizer05> sorry, that's ridiculous but not a "competitor to pyra"
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<whitequark> hmm, got some polishing paste, chromium oxide based
<whitequark> also made the lens bi-convex by gluing the parts with epoxy
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<DocScrutinizer05> pyra is a general purpose palmtop computer optimized for, and running, Linux as OS. It comes with some minor "compromises" regarding HID design to make it more suited for playing games on it (D-pad, ABCD buttons, dunno what else)
<wpwrak> whitequark: now you can make your own geek glasses ;-)
<whitequark> wpwrak: yeah, thought about it
<whitequark> judging by the ones I have, it'd be really hard to properly create the geometry
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<pcercuei> larsc: hey, do you have a pump for tires?
<whitequark> I made that lens! http://imgur.com/a/3PZai
<whitequark> even took a picture through it with my camera. a miracle it focused on *anything*
<wpwrak> now you can make a google glass clone with your own lenses ;-)
<whitequark> a small step for a man, a big step for creepy open-source hardware?
<wpwrak> hint: opencreep.org is still available ;)
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